-- =============================================
-- Author:		<Author,,Name>
-- Create date: <Create Date, ,>
-- Description:	<Description, ,>
-- =============================================
CREATE FUNCTION [dbo].[fds__fn_IntermediateIsAllocatedToOther]
(
	@Intermediate_InvID varchar(10)
	,@Target_InvID varchar(10)

)
RETURNS bit
AS
BEGIN
	DECLARE @IsA bit = CASE WHEN EXISTS (SELECT * FROM [dbo].[fds__invoices] as intermediates JOIN [dbo].[fds__invoice_details] as id on intermediates.[Id] = id.[InvId] and id.[AllocatedTo_InvId] is not null
														JOIN [dbo].[fds__invoices] as non_intermediates ON id.[AllocatedTo_InvId] = non_intermediates.[Id] and id.[AllocatedTo_InvId] is not null
													WHERE intermediates.[Id] = @Intermediate_InvID and (@Target_InvID is null or non_intermediates.[Id] <> @Target_InvID))
									THEN 1 ELSE 0 END;

	RETURN @isA;

END